Improved activation device
Improved anchor arm for seismic logging tool
Improved anti-rotation tool
Improved apparatus for inspecting lateral sewer pipes
Improved auger cleaners
Improved backup tool
Improved ball injector
Improved bandwidth wireline data transmission system and method
Improved blow-out preventer
Improved blowout preventer
Improved blunger vat.
Improved boring tool
Improved bridge plug
Improved bridge plug for a well bore
Improved cable bolt
Improved cable bolt
Improved cam follower for power tongs and other uses
Improved casing shoe
Improved centraliser
Improved centraliser